449431 has 4 divisors (see below), whose sum is σ = 455200. Its totient is φ = 443664.

The previous prime is 449419. The next prime is 449437. The reversal of 449431 is 134944.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 449431 - 2⁵ = 449399 is a prime.

It is a super-2 number, since 2×449431² = 403976447522, which contains 22 as substring.

It is a Duffinian number.

449431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 449396 and 449405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (113800).

2⁴⁴⁹⁴³¹ is an apocalyptic number.

449431 is a deficient number, since it is larger than the sum of its proper divisors (5769).

449431 is an equidigital number, since it uses as much as digits as its factorization.

449431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768.

The product of its digits is 1728, while the sum is 25.

The square root of 449431 is about 670.3961515403. The cubic root of 449431 is about 76.5986310931.

It can be divided in two parts, 44943 and 1, that added together give a palindrome (44944).

The spelling of 449431 in words is "four hundred forty-nine thousand, four hundred thirty-one".